Double-layer waterproof generator shell for generator

Abstract

The invention relates to the technical field of generator shells, and discloses a double-layer waterproof generator shell for a generator, which comprises a shell part, and a first connecting part and a second connecting part which are respectively arranged at two ends of the shell part, the first connecting part comprises a front cover body fixedly arranged at one end of a support cover, and the second connecting part comprises a rear cover body fixedly arranged at the other end of the support cover; ventilation holes are symmetrically and uniformly formed in the outer surface of the front cover body; a shielding unit is arranged on the outer side of the front cover body and comprises a rain shielding mechanism movably arranged on the outer side of the front cover body, and the rain shielding mechanism comprises a second ventilation hood and a fan fixedly arranged in the second ventilation hood. According to the double-layer waterproof generator shell for the generator, the shielding unit is movably arranged on the outer side of the first connecting part, the ventilation holes are conveniently shielded according to the use environment, meanwhile, a draught fan is arranged in the rain shielding mechanism, the air supply effect on the first connecting part can be improved, water is prevented from entering the first connecting part, and the service life of the generator is prolonged. And a good ventilation effect is kept while rainwater is effectively blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of generator housings, and specifically provides a double-layer waterproof generator housing for generators. Background Art

[0002] The generator housing is an important part of the generator, mainly used to protect the internal components. The design and material selection directly affect the performance, lifespan, and safety of the generator equipment.

[0003] Existing generator housings generally have the functions of external protection, structural support, and ventilation and heat dissipation. There are also some generator housings that provide functional characteristics such as shock absorption, waterproofing, explosion protection, and corrosion resistance for different usage environments. For example, a dust-proof and waterproof automotive alternator with the Chinese patent authorization publication number CN114977609B reduces the entry of dust into the outer cover by setting a dust-proof net, and can block the dust-proof net with a water baffle to prevent rainwater from entering the housing. Through the protection of the housing, the entry of dust and rainwater into the alternator body is reduced, improving the service life of the generator.

[0004] Another example is a rain-proof diesel generator set with a detachable shielding structure with the Chinese patent authorization publication number CN115717565B. By pushing the movement of the push-pull plate, and then through the cooperation of two groups of second transmission components, the two groups of component plates will be driven to be exposed. Subsequently, through the rotation of the movable inner shaft, the rain shielding component can be exposed, so that the diesel generator set mechanism is shielded inside the space formed by the two groups of rain shielding components. And when the push-pull plate is pulled out and moved outside the generator set base plate, the two groups of component plates are driven into the generator set base plate. At this time, through the linkage setting of the first transmission component, the winding component is restricted and cannot move, achieving the effect of shielding the diesel generator set mechanism inside the shielding enclosure space to play a rain-proof role.

[0005] However, most of the existing external motor housings waterproof and shield the generator by installing water baffle plates or external rain shielding mechanisms. While these shielding methods block rainwater, they usually lead to a significant reduction in the overall ventilation and heat dissipation effect of the generator housing, which may cause an overheating problem inside the generator, and thus there are certain usage defects. Therefore, we propose a double-layer waterproof generator housing for generators to solve the problems raised above. Summary of the Invention

[0006] The purpose of the present invention is to provide a double-layer waterproof generator housing for generators to solve the problem that the overall ventilation and heat dissipation effect of the existing external motor housing is often significantly reduced while blocking rainwater as mentioned in the above background art.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a double-layer waterproof generator housing for a generator, comprising a housing portion and a first connecting portion and a second connecting portion respectively disposed at both ends of the housing portion, the housing portion comprising a support cover and a junction box fixedly disposed on the top of the support cover, the first connecting portion comprising a front cover body fixedly mounted on one end of the support cover, the outer surface of the front cover body being symmetrically and evenly provided with ventilation holes, the second connecting portion comprising a rear cover body and a connecting cover fixedly disposed on the bottom of the rear cover body;

[0008] A shielding unit is provided on the outside of the front cover body, and the shielding unit includes a rain shield mechanism movably provided on the outside of the front cover body, the rain shield mechanism includes a second ventilation hood and a fan fixedly provided inside the second ventilation hood, and a labyrinth-type air supply channel is provided inside the second ventilation hood, a support assembly is provided on the side of the front cover body away from the support cover, and a positioning assembly is connected to the inside of the support assembly, the positioning assembly includes an insertion rod, and a positioning hole cooperating with the insertion rod is provided on the outer surface of the front cover body.

[0009] As a preferred technical solution of the present invention, the support cover and the front cover body, as well as the support cover and the rear cover body, are fixedly connected via a flange structure, and the top surface of the junction box is horizontally arranged and serves to install a junction board.

[0010] As a preferred technical solution of the present invention, a limiting groove is provided on one end face of the front cover body facing the support assembly, the limiting groove is arranged in an arc shape, the positioning holes are symmetrically provided on the outer surface of the front cover body, and both ends of the limiting groove are connected to the positioning holes.

[0011] As a preferred technical solution of the present invention, the connecting cover includes a first ventilation cover fixedly arranged at the bottom end of the rear cover body, and a dense hole plate for ventilation is clamped inside the first ventilation cover.

[0012] As a preferred technical solution of the present invention, the rain shield mechanism is symmetrically arranged on the outside of the front cover body, and the outer surface of the front cover body is provided with an annular groove structure that cooperates with the rain shield mechanism, and the rain shield mechanism is rotatably connected with the front cover body through the annular groove structure.

[0013] As a preferred technical solution of the present invention, the rainproof mechanism also includes a first bent plate, a second bent plate and an arc-shaped plate that are integrally fixed inside the second ventilation hood, and the first bent plate and the second bent plate constitute an "S"-shaped air supply channel, and one end of the "S"-shaped air supply channel is provided with an air inlet connected to the outside, an arc-shaped air supply channel is formed between the arc-shaped plate and the second ventilation hood, and one end of the arc-shaped air supply channel is connected to the "S"-shaped air supply channel, and the maze-type air supply channel includes the arc-shaped air supply channel and the "S"-shaped air supply channel.

[0014] As a preferred technical solution of the present invention, a blower is evenly distributed on one end face of the arc-shaped plate facing the front cover body, and a connection hole is provided inside the arc-shaped plate and is arranged in cooperation with the blower.

[0015] As a preferred technical solution of the present invention, the support assembly includes a connection frame and fixing frames symmetrically and fixedly connected to both ends of the connection frame. The fixing frames are fixedly connected to the rain shielding mechanism through a bolt structure and play a role in fixedly connecting the rain shielding mechanism monomers on both sides of the front cover body.

[0016] As a preferred technical solution of the present invention, the positioning assembly further includes a fixing member fixedly arranged on the end face of the connection frame facing away from the front cover body, and through hole structures for cooperating with the insertion rod are provided inside both the fixing member and the connection frame. The insertion rod is slidably connected to the fixing member and the connection frame through the through hole structure.

[0017] As a preferred technical solution of the present invention, a convex plate is fixedly arranged on the outer surface of the insertion rod, and the convex plate is arranged between the fixing member and the connection frame. A spring is further arranged on the outside of the insertion rod, and both ends of the spring are fixedly connected to the fixing member and the convex plate respectively. One end of the insertion rod facing away from the front cover body is fixedly connected to an operation block, and the operation block is arranged outside the fixing member.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: for the double-layer waterproof generator housing for a generator, by arranging the shielding unit movably outside the first connection part, it is convenient to shield the ventilation holes according to the use environment. At the same time, by arranging a blower inside the rain shielding mechanism, the air supply effect on the first connection part can be increased and water ingress can be avoided, effectively blocking rainwater while maintaining a good ventilation effect;

[0019] 1. The ventilation holes and the rear cover body play a ventilation role for the generator housing. Since the entire shielding unit can rotate around the axis of the front cover body outside the first connection part, when the generator housing is used in rainy weather, by pulling the operation block, the insertion rod and the convex plate are driven to move inside the fixing member and compress the spring, and the insertion rod is pulled out from the positioning hole at one end of the limit groove. The rain shielding mechanism is rotated outside the ventilation hole. When the rain shielding mechanism rotates 90°, the convex plate drives the insertion rod to insert into the positioning hole at the other end of the limit groove under the action of the elastic force of the spring, automatically completing the positioning and fixing of the shielding unit, so that the rain shielding mechanism effectively covers the ventilation holes;

[0020] 2. By arranging an "S"-shaped air supply channel and an arc-shaped air supply channel inside the second ventilation cover, when the rain shielding mechanism covers the ventilation holes, the air inlet of the "S"-shaped air supply channel is located at the bottom of the front cover body. At the same time, due to the "S" shape of the air supply channel, rainwater can be effectively prevented from floating into the rain shielding mechanism;

[0021] Furthermore, when the rain shield mechanism covers the ventilation holes, external air flows into the arc-shaped air supply channel through the air inlet of the "S"-shaped air supply channel. By starting the fan, the air flow in the air supply channel is promoted to accelerate and flow towards the first connecting part, and then the air flow enters the front cover through the ventilation holes, increasing the ventilation effect of the generator housing. This enables the generator housing to maintain good ventilation during rainy weather. At the same time, when the fan is started, the connecting cover is in a pressurized air outlet state, and the opening of the connecting cover is arranged downward, making it difficult for rainwater to enter through the connecting cover, thus optimizing the overall rain and waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic diagram of the overall structure of the present invention when the shielding unit rotates to the working state;

[0024] Figure 3 is an exploded structure diagram of the first connecting part and the second connecting part of the present invention;

[0025] Figure 4 is a connected structure diagram of the first connecting part and the rain shield mechanism in a partially cut-away state of the present invention;

[0026] Figure 5 is an exploded structure diagram of the first connecting part and the shielding unit of the present invention;

[0027] Figure 6 is an exploded structure diagram of the support assembly and the first connecting part in a partially cut-away state of the present invention;

[0028] Figure 7 is of the present invention Figure 2 magnified structure diagram at position A;

[0029] Figure 8 is of the present invention Figure 4 magnified structure diagram at position B;

[0030] Figure 9 is of the present invention Figure 6 magnified structure diagram at position C;

[0031] Figure 10 is a structure diagram of the second connecting part in a partially cut-away state of the present invention.

[0032] In the figure: 100, housing part; 101, support cover; 102, junction box; 200, first connection part; 201, front cover body; 202, ventilation hole; 203, limit groove; 204, positioning hole; 300, second connection part; 310, rear cover body; 320, connection cover; 321, first ventilation cover; 322, perforated plate; 400, shielding unit; 410, rain shielding mechanism; 411, second ventilation cover; 412, first bending plate; 413, second bending plate; 414, arc plate; 415, connection hole; 416, fan; 410, rain shielding mechanism; 420, support assembly; 421, connection frame; 422, fixing frame; 430, positioning assembly; 431, fixing part; 432, insertion rod; 433, convex plate; 434, spring; 435, operation block. Detailed implementation mode

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figure 1-10 , the present invention provides a technical solution: a double-layer waterproof generator housing for a generator, specifically as shown in Figure 1 and Figure 2 , which includes a housing part 100 and a first connection part 200 and a second connection part 300 respectively arranged at both ends of the housing part 100. The housing part 100 includes a support cover 101 and a junction box 102 fixedly arranged on the top of the support cover 101. The top surface of the junction box 102 is horizontally arranged, which plays a role in facilitating the installation of the wiring board. The first connection part 200 includes a front cover body 201 fixedly installed at one end of the support cover 101. At the same time, the second connection part 300 includes a rear cover body 310. Combining Figure 1 with Figure 3 as shown, since both between the support cover 101 and the front cover body 201 and between the support cover 101 and the rear cover body 310 are fixedly connected through a flange structure, through the split design of the housing part 100, the first connection part 200 and the second connection part 300, the generator housing can be disassembled to facilitate the maintenance of internal components;

[0035] Specifically as shown in Figure 1 and Figure 2 , through the outer surface of the front cover body 201, ventilation holes 202 are symmetrically and evenly opened. At the same time, a connection cover 320 is fixedly arranged at the bottom of the rear cover body 310. Combining Figure 3 with Figure 10As shown in the figure, the connecting cover 320 includes a first ventilation cover 321 fixedly arranged at the bottom end of the rear cover 310, and a perforated plate 322 is clamped inside the first ventilation cover 321, which plays a ventilation role for the generator housing through the ventilation holes 202 and the rear cover 310;

[0036] Specifically, as Figure 3 shown in the figure, a shielding unit 400 is arranged on the outer side of the front cover 201, and the shielding unit 400 includes a rain shielding mechanism 410 movably arranged on the outer side of the front cover 201. Combining Figure 1 and Figure 2 shown in the figure, the rain shielding mechanism 410 is symmetrically arranged on the outer side of the front cover 201, and an annular groove structure cooperating with the rain shielding mechanism 410 is formed on the outer surface of the front cover 201. Moreover, the rain shielding mechanism 410 is rotationally connected to the front cover 201 through this annular groove structure. The whole shielding unit 400 can rotate around the axis of the front cover 201 on the outer side of the first connecting part 200. When the generator housing is used in rainy weather, the ventilation holes 202 can be covered by the rotation of the rain shielding mechanism 410;

[0037] Specifically, as Figure 4 and Figure 8 shown in the figure, the rain shielding mechanism 410 includes a second ventilation cover 411 and a fan 416 fixedly arranged inside the second ventilation cover 411. A labyrinth air supply channel is arranged inside the second ventilation cover 411, and this labyrinth air supply channel includes an arc-shaped air supply channel and an "S"-shaped air supply channel. At the same time, the rain shielding mechanism 410 also includes a first bending plate 412, a second bending plate 413 and an arc-shaped plate 414 integrally and fixedly arranged inside the second ventilation cover 411. The first bending plate 412 and the second bending plate 413 form an "S"-shaped air supply channel, and an air inlet connected to the outside is arranged at one end of this "S"-shaped air supply channel. Combining Figure 2 with Figure 7 shown in the figure, when the rain shielding mechanism 410 covers the ventilation holes 202, the air inlet of the "S"-shaped air supply channel is located at the bottom of the front cover 201. At the same time, rainwater can be effectively prevented from floating into the rain shielding mechanism 410 through the "S"-shaped air supply channel;

[0038] Furthermore, an arc-shaped air supply channel is formed between the arc-shaped plate 414 and the second ventilation cover 411, and one end of this arc-shaped air supply channel is communicated with the "S"-shaped air supply channel. At the same time, fans 416 are evenly distributed on one end face of the arc-shaped plate 414 facing the front cover 201, and connection holes 415 cooperating with the fans 416 are formed inside the arc-shaped plate 414. Specifically, as Figure 5 and ​As shown in FIG, when the rain shield mechanism 410 covers the ventilation hole 202, external air flows into the arc-shaped air supply channel through the air inlet of the "S"-shaped air supply channel. The fan 416 is activated to accelerate the air flow in the air supply channel to flow toward the first connecting portion 200, and then the air flow enters the front cover 201 through the ventilation hole 202, thereby increasing the ventilation effect. The generator housing achieves good ventilation and heat dissipation effects on the generator in rainy weather.

[0039] Specific examples ​ and ​ As shown in , a support assembly 420 is provided on the side of the front cover 201 facing away from the support cover 101, and the support assembly 420 includes a connecting frame 421 and a fixing frame 422 symmetrically fixedly connected to both ends of the connecting frame 421, and the fixing frame 422 is fixedly connected to the rain shield mechanism 410 by a bolt structure. The support assembly 420 plays a role in fixing the rain shield mechanism 410 monomers on both sides of the front cover 201, so that the rain shield mechanism 410 monomers can rotate synchronously;

[0040] Furthermore, the support assembly 420 is internally connected to a positioning assembly 430, and the positioning assembly 430 includes an insert rod 432, and the positioning assembly 430 also includes a fixing member 431 fixedly arranged on the end surface of the connecting frame 421 away from the front cover 201. ​ As shown in , the interior of the fixing member 431 and the connecting frame 421 are provided with a through-hole structure that cooperates with the insertion rod 432, and the insertion rod 432 is slidably connected with the fixing member 431 and the connecting frame 421 through the through-hole structure, and the insertion rod 432 can move axially along the interior of the fixing member 431 and the connecting frame 421 of the front cover 201;

[0041] Furthermore, a convex plate 433 is fixedly provided on the outer surface of the insertion rod 432, and the convex plate 433 is arranged between the fixing member 431 and the connecting frame 421. At the same time, a spring 434 is also provided on the outer side of the insertion rod 432, and the two ends of the spring 434 are fixedly connected to the fixing member 431 and the convex plate 433 respectively. An operating block 435 is fixedly connected to the end of the insertion rod 432 away from the front cover 201, and the operating block 435 is arranged on the outer side of the fixing member 431. Pulling the operating block 435 can drive the insertion rod 432 and the convex plate 433 to move inside the fixing member 431 and compress the spring 434.

[0042] Specific examples ​ and ​As shown in the figure, positioning holes 204 that cooperate with the insertion rods 432 are formed in the outer surface of the front cover 201. A limiting groove 203 is formed in one end face of the front cover 201 facing the support assembly 420, and the limiting groove 203 is arc-shaped. At the same time, the positioning holes 204 are symmetrically formed in the outer surface of the front cover 201, and both ends of the limiting groove 203 are connected to the positioning holes 204. When rotating the rain shielding mechanism 410, the insertion rod 432 can be withdrawn from the positioning hole 204 at one end of the limiting groove 203 through the operation block 435, and then the shielding unit 400 can be rotated. At this time, the insertion rod 432 is slidably connected to the front cover 201 through the limiting groove 203. When the rain shielding mechanism 410 covers the ventilation hole 202, the convex plate 433 drives the insertion rod 432 to insert into the positioning hole 204 at the other end of the limiting groove 203 under the elastic force of the spring 434, automatically completing the positioning and fixing of the shielding unit 400;

[0043] The working principle of the present invention: When using the double-layer waterproof generator housing for the generator, first, the ventilation holes 202 and the rear cover 310 play a ventilation role for the generator housing, completing the conventional ventilation and heat dissipation of the generator. Specifically, as shown in ​ and ​ Since the entire shielding unit 400 can rotate around the axis of the front cover 201 outside the first connection portion 200, when the generator housing is used in rainy weather, by pulling the operation block 435, the insertion rod 432 and the convex plate 433 are driven to move inside the fixing member 431 and compress the spring 434, withdrawing the insertion rod 432 from the positioning hole 204 at one end of the limiting groove 203. Rotate the rain shielding mechanism 410 outside the ventilation hole 202. When the rain shielding mechanism 410 rotates 90°, the convex plate 433 drives the insertion rod 432 to insert into the positioning hole 204 at the other end of the limiting groove 203 under the elastic force of the spring 434, automatically completing the positioning and fixing of the shielding unit 400, so that the rain shielding mechanism 410 effectively covers the ventilation hole 202;

[0044] Furthermore, an "S"-shaped air supply channel and an arc-shaped air supply channel are provided inside the second ventilation cover 411. When the rain shielding mechanism 410 covers the ventilation hole 202, the air inlet of the "S"-shaped air supply channel is located at the bottom of the front cover 201. At the same time, the "S" shape of the air supply channel can effectively prevent rainwater from flowing into the rain shielding mechanism 410;

[0045] Furthermore, when the rain shield mechanism 410 covers the ventilation holes 202, outside air flows into the arc-shaped air supply channel through the air inlet of the "S"-shaped air supply channel. By starting the fan 416, the air flow in the air supply channel is promoted to accelerate and flow towards the first connecting portion 200. Then, the air flow enters the front cover 201 through the ventilation holes 202, increasing the ventilation effect of the generator housing. Thus, the generator housing can achieve good ventilation and heat dissipation effects on the generator in rainy weather. At the same time, when the fan 416 is started, the connecting cover 320 is in a pressurized air outlet state, and the opening of the connecting cover 320 is arranged downward, making it difficult for rainwater to enter through the connecting cover 320.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A double-layer waterproof generator housing for a generator, comprising a housing part (100), a first connection part (200) and a second connection part (300) respectively arranged at both ends of the housing part (100), wherein the housing part (100) includes a support cover (101) and a junction box (102) fixedly arranged on the top of the support cover (101), and is characterized in that: The first connecting portion (200) comprises a front cover body (201) fixedly mounted on one end of the support cover (101), and the outer surface of the front cover body (201) is symmetrically and evenly provided with ventilation holes (202); the second connecting portion (300) comprises a rear cover body (310) and a connecting cover (320) fixedly mounted on the bottom of the rear cover body (310); A shielding unit (400) is provided on the outside of the front cover (201), and the shielding unit (400) includes a rain shield mechanism (410) movably provided on the outside of the front cover (201), the rain shield mechanism (410) includes a second ventilation cover (411) and a fan (416) fixedly provided inside the second ventilation cover (411), and a labyrinth-type air supply channel is provided inside the second ventilation cover (411), a support assembly (420) is provided on the side of the front cover (201) facing away from the support cover (101), and a positioning assembly (430) is connected to the inside of the support assembly (420), the positioning assembly (430) includes an insertion rod (432), and a positioning hole (204) is provided on the outer surface of the front cover (201) to cooperate with the insertion rod (432).

2. The double-layer waterproof generator housing for a generator according to claim 1, wherein: The support cover (101) and the front cover body (201), as well as the support cover (101) and the rear cover body (310), are fixedly connected via flange structures. The top surface of the junction box (102) is arranged horizontally and serves to install a junction board.

3. A double-layer waterproof generator housing for a generator according to claim 2, characterized in that: A limiting groove (203) is provided on one end surface of the front cover (201) facing the support assembly (420), and the limiting groove (203) is arranged in an arc shape. The positioning holes (204) are symmetrically provided on the outer surface of the front cover (201), and both ends of the limiting groove (203) are connected to the positioning holes (204).

4. A double-layer waterproof generator housing for a generator according to claim 3, characterized in that: The connecting cover (320) comprises a first ventilation cover (321) fixedly arranged at the bottom end of the rear cover body (310), and a dense hole plate (322) having a ventilation function is clamped inside the first ventilation cover (321).

5. The double-layer waterproof generator housing for a generator according to claim 4, characterized in that: The rain shielding mechanism (410) is symmetrically arranged on the outside of the front cover (201), and the outer surface of the front cover (201) is provided with an annular groove structure that cooperates with the rain shielding mechanism (410), and the rain shielding mechanism (410) is rotatably connected to the front cover (201) through the annular groove structure.

6. The double-layer waterproof generator housing for a generator according to claim 5, wherein: The rain shield mechanism (410) further includes a first bent plate (412), a second bent plate (413) and an arc-shaped plate (414) integrally fixedly arranged inside the second ventilation hood (411), and the first bent plate (412) and the second bent plate (413) form an "S"-shaped air supply channel, and one end of the "S"-shaped air supply channel is provided with an air inlet connected to the outside, an arc-shaped air supply channel is formed between the arc-shaped plate (414) and the second ventilation hood (411), and one end of the arc-shaped air supply channel is connected to the "S"-shaped air supply channel, and the labyrinth-type air supply channel includes the arc-shaped air supply channel and the "S"-shaped air supply channel.

7. The double-layer waterproof generator housing for a generator according to claim 6, characterized in that: On one side end face of the arc-shaped plate (414) facing the front cover body (201), a plurality of fans (416) are evenly distributed, and a connection hole (415) for cooperating with the fans (416) is formed inside the arc-shaped plate (414).

8. A double-layer waterproof generator housing for a generator according to claim 7, characterized in that: The support assembly (420) includes a connection frame (421) and fixing frames (422) symmetrically and fixedly connected to both ends of the connection frame (421). The fixing frames (422) are fixedly connected to the rain shielding mechanism (410) through bolt structures and play a role in fixedly connecting the individual rain shielding mechanisms (410) on both sides of the front cover body (201).

9. The double-layer waterproof generator housing for a generator according to claim 8, wherein: The positioning assembly (430) further includes a fixing member (431) fixedly arranged on the end face of the connection frame (421) facing away from the front cover body (201). Through hole structures for cooperating with the insertion rod (432) are formed inside both the fixing member (431) and the connection frame (421). The insertion rod (432) is slidably connected to the fixing member (431) and the connection frame (421) through these through hole structures.

10. A double-layer waterproof generator housing for a generator according to claim 9, characterized in that: A convex plate (433) is fixedly arranged on the outer surface of the insertion rod (432), and the convex plate (433) is arranged between the fixing member (431) and the connection frame (421). A spring (434) is further arranged on the outer side of the insertion rod (432), and both ends of the spring (434) are fixedly connected to the fixing member (431) and the convex plate (433) respectively. One end of the insertion rod (432) facing away from the front cover body (201) is fixedly connected to an operation block (435), and the operation block (435) is arranged on the outer side of the fixing member (431).

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